activity
19992022
most citedPrimitive divisors of elliptic divisibility sequences

50 citations · 401 across the 46 of their papers we have counts for

collaborators

46 papers

math.NT2022★ 2 cited

On (almost) realizable subsequences of linearly recurrent sequences

Florian Luca, Tom Ward

In this note we show that if is a simple linearly recurrent sequence of integers whose minimal recurrence of order involves only positive coefficients th…

math.NT2021★ 4 cited

Stirling number and periodic points

Piotr Miska, Tom Ward

We introduce the notion of almost realizability, an arithmetic generalization of realizability for integer sequences, which is the property of counting periodic points for some map…

math.NT2020★ 2 cited

Fibonacci along even powers is (almost) realizable

Patrick Moss, Tom Ward

An integer sequence is called realizable if it is the count of periodic points of some map. The Fibonacci sequence does not have this property, and the Fibonacci sequence s…

math.DS2020★ 17 cited

Dold sequences, periodic points, and dynamics

Jakub Byszewski, Grzegorz Graff, Thomas Ward

In this survey we describe how the so-called Dold congruence arises in topology, and how it relates to periodic point counting in dynamical systems.

math.DS2018★ 5 cited

Time-changes preserving zeta functions

Sawian Jaidee, Patrick Moss, Tom Ward

We associate to any dynamical system with finitely many periodic orbits of each length a collection of possible time-changes of the sequence of periodic point counts that preserve…

math.DS2018

Mixing, wine, and serendipity

Thomas Ward

Mixing for measure-preserving group actions is a fundamental notion in ergodic theory, with different phenomena arising for different acting groups. In 1993, Klaus Schmidt and Tom…